1980967035965 has 16 divisors (see below), whose sum is σ = 2386010749440. Its totient is φ = 1578874714560.

The previous prime is 1980967035961. The next prime is 1980967035967. The reversal of 1980967035965 is 5695307690891.

It is not a de Polignac number, because 1980967035965 - 2² = 1980967035961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1980967035895 and 1980967035904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980967035961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12997250 + ... + 13148780.

It is an arithmetic number, because the mean of its divisors is an integer number (149125671840).

Almost surely, 2^{1980967035965} is an apocalyptic number.

It is an amenable number.

1980967035965 is a deficient number, since it is larger than the sum of its proper divisors (405043713475).

1980967035965 is a wasteful number, since it uses less digits than its factorization.

1980967035965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161252.

The product of its (nonzero) digits is 110224800, while the sum is 68.

The spelling of 1980967035965 in words is "one trillion, nine hundred eighty billion, nine hundred sixty-seven million, thirty-five thousand, nine hundred sixty-five".